Sea Breeze, I checked my assumptions. Fleshly Israel, as a nation, is rejected:
Jesus demonstrated it with a parable (Matt. 21:33-45). Jesus ended the parable by saying: “Therefore I tell you, the kingdom of God will be taken away from you and given to a people producing its fruits.” (Matt. 21:43)
"O Jerusalem, Jerusalem, the city that kills the prophets and stones those who are sent to it! How often would I have gathered your children together as a hen gathers her brood under her wings, and you were not willing! See, your house is left to you desolate. (Matt. 23:37, 38; Luke 13:34, 35; ESV)
God’s covenant with them has been annulled. He gives the reason:
10 And I took my staff Favor, and I broke it, annulling the covenant that I had made with all the peoples.
11 So it was annulled on that day, and the sheep traders, who were watching me, knew that it was the word of the LORD.
12 Then I said to them, "If it seems good to you, give me my wages; but if not, keep them." And they weighed out as my wages thirty pieces of silver.
13 Then the LORD said to me, "Throw it to the potter"-- the lordly price at which I was priced by them. So I took the thirty pieces of silver and threw them into the house of the LORD, to the potter.
14 Then I broke my second staff Union, annulling the brotherhood between Judah and Israel. (Zech. 11:10-14 ESV)
As for Israel, a remnant will be saved, after the full number of the nations had come in:
And Isaiah cries out concerning Israel: "Though the number of the sons of Israel be as the sand of the sea, only a remnant of them will be saved. Lest you be wise in your own sight, I do not want you to be unaware of this mystery, brothers: a partial hardening has come upon Israel, until the fullness of the Gentiles has come in. (Rom. 9:27; 11:25 ESV)